Effective Lagrangian for $b \rightarrow s$ Processes with QCD-Corrections

Details Effective Lagrangian for $b \rightarrow s$ Processes with QCD-Corrections Effective Lagrangian for $b \rightarrow s$ Processes with QCD-Corrections

1993-02-09

arxiv.org/abs/hep-ph/9302244v2

Mod. Phys. Lett. A8 (1993) 1679-1690

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, UM-TH-92-32 TeX, 1 figure (postscript) available upon request

Scientific paper

We present a complete calculation of the effective lagrangian for $b \rightarrow s$ processes with $QCD$ corrections, in the leading logarithm approximation, for the cases $m_t=m_w$ and $m_t \gg m_w$. The effective lagrangian is then applied to estimate the $b \rightarrow s \gamma$ decay rate. We find that it is enhanced by a factor of 6 for the case $m_t=m_w$, and a factor of about 2 for $m_t \gg m_w$. Our results differ from those found in the literature, but are not very different numerically for $m_t=m_w$.

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